helliwell



(No Model.) 7

l T. WJHELLIWELL.

GLAZING THE ROOFS 0P HORTIGULTURAL STRUCTURES. 7'

No. 284,421. 4 Patented Sptl l, 1883.

Fi M1.

INVENTORY n PETERS. Pgww-Limo n m. Waahmgtol) u c UNITED STATES] PATENT OFFICE.

THOMAS NV. HELLIWELL, OF BRIGHOUSE, COUNTY OF YORK, ENGLAND.

GLAZING THE ROOFS OF HORTICULTURAL STRUCTURES.

SPECIFICATION forming part of Letters Patent No. 284,421, dated eptember 4, 1883..

Application filed May 3, 1882. (No model.) Patented in England February 13,1879,N0. 57 0.

provements inMeans for Securing Glass,

Slates, 850.,- to the Roofs and other parts of Buildings, of which the following is a specification.

My invention is especially adapted to scouring plates or panes of glass to the roofs andsides of horticultural structures, and I will describe it herein as applied to that purpose.

The novel features of the inventionwill be more particularly set forth hereinafter.

In the drawings, which serve to illustrate referred to more particularly hereinafter.

The plates or panes of glass forming the roof overlap in the manner of shingles or slates, and their lateral edges. are clasped between metal strips of peculiar construction, which run from the eaves to the ridge of the roof.

A represents an upper and B a lower pane of glass, the two overlapping at x.

O is one of the purlins upon which the roof structure rests.

D is a strip of metal corrugated longitudinally, as best shown in Fig. 2, its elements comprising an arched central rib, a, which projects upward between the panes of glass,

two lateral lower ribs, b b, on which the panes rest, and two exterior lateral troughs, c c, the

outer walls, 0 c, of which do not rise highenough to touch the glass. There are also two lateral troughs, (Z (1, which are overhung by the edges of the panes of glass. This supporting-strip D extends by preference from the caves to the ridge of the roof.

The glass is held in place on the seats or ribs '12 b by means of sheetmetal cap-strips E, which arearched at the center and have their lateral edges curved upward to form troughs e e. The strip E rests on the crown of the arch of rib a, and is secured in place by some good meansas, for example, by a bolt and nut, f, asshown at the left in Fig. 2, by a T- piece and nut, f, as shown at the center of Fig. 2, or by means of a pin and gib or key, J, as shown at the right in Fig. 2. v

In Fig. 3 I have shown the bolt which secures the-cap-strip E in place as passing down 5 5 through a metal purlin, and in Fig. 4 I have shown the screw as passing down into the sash-bar M of an ordinary skylight or hot house roof.

For the purpose of separating the two panes 6o of glass where they overlap, in order to bet ter carry away the moisture, I place between them a thin strip, F, of wood, metal, or other suitable material. The moisture that collects in the space 9 above said strip is thus led into 6 5 the troughs (l in the strip D, and flows off, thereby preventing the dripping of moisture in the interior of the building. I

In order to make such glazed structures dust, air, and water tight, I place between the overlapping edges of the glass, back of the strip F, a packing-strip, G, of rubber or other suitable yielding material. If the packingstrip be composed of absorbent material, it will absorb the condensed water and give it 7 off by evaporation.

A washer of rubber is placed about thebolt f, thatsecures the strips D and Etogether, be tween said strips, to prevent leakage and to assist in holding the bolts in place while the So nuts are being screwed thereon. The cap-strips E maybe in short lengths, and be made to overlap each other, as shown in Figi l. As they are usually made from zinc or other elastic metal, they can be made to 8 fit down snugly on the glass. The troughs or spouts e in these serve to lead off the water, and their convex under sides press elastically on the glass. Any water that passes under the lateral edges of E from the upper sideof the 0 glass will flow off through the trough d in D, and any water formed on the under side of the glass by condensation, or which overflows under the glass from (I, will be caught in 0 and carried off. 1 I

It will be seen that I do not allow the outer wall, a, of trough c to rise high enough to touch the glass. The object of this is to prevent the water which gathers on the under side of the glass from flowing over the lower 10o or exterior face of trough o and dripping into the building. I

7 well as with glass. 4

Having thus described my invention, I claim 1. The combination, with the covering plates or panes, of the cap-strip E and the supporting-strip D, the latter provided with an arched rib, a, lateral troughs d (1, lower ribs, 1) b, to support the panes or plates, and exterior troughs, c c, the outer sides of which do not extend up to the panes, substantially as set forth.

2. As a means for Supporting and securing the lateral edges of the plates or panes, the supporting-strip D, made from sheet metal,

and comprising the elements a, b, c, c, and d,

and the cap-strip E, constructed of elastic sheet metal, and having a central arched portion to rest on the strip D, and two lateral troughs, e e, to press elastically on the plates or panes, substantially as set forth.

3. The combination, with the overlapping panes, and means, substantially as described, for supporting and securing their lateral edges, of the packing-strip G, arranged substantially as and for the purposes set forth.

In witness that I claim the foregoing I have hereunto set my hand this 18th day of Oc'to-' ber, 1881.

' THOS. W. HELLIII ELL.

'Witnesses:

WALTER A. BARLoW, ALFRED E. WELSH, 6 St. Pauls Ohwchyard, London, Mgkmd. 

